/*
* This file is part of the libsigrok project.
*
- * Copyright (C) 2011-2012 Uwe Hermann <uwe@hermann-uwe.de>
+ * Copyright (C) 2011-2014 Uwe Hermann <uwe@hermann-uwe.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include <glib.h>
#include <ftdi.h>
#include <stdint.h>
+#include <string.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
-/* Message logging helpers with subsystem-specific prefix string. */
-#define LOG_PREFIX "la8: "
-#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
-#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
-#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
-#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
-#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
-#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
-
-#define USB_VENDOR_ID 0x0403
-#define USB_DESCRIPTION "ChronoVu LA8"
-#define USB_VENDOR_NAME "ChronoVu"
-#define USB_MODEL_NAME "LA8"
-#define USB_MODEL_VERSION ""
-
-#define NUM_PROBES 8
-#define TRIGGER_TYPE "01"
+#define LOG_PREFIX "la8/la16"
+
#define SDRAM_SIZE (8 * 1024 * 1024)
-#define MIN_NUM_SAMPLES 1
+#define MAX_NUM_SAMPLES SDRAM_SIZE
#define BS 4096 /* Block size */
#define NUM_BLOCKS 2048 /* Number of blocks */
+enum {
+ CHRONOVU_LA8,
+ CHRONOVU_LA16,
+};
+
+struct cv_profile {
+ int model;
+ const char *modelname;
+ const char *iproduct; /* USB iProduct string */
+ unsigned int num_channels;
+ uint64_t max_samplerate;
+ const char *trigger_type;
+ float trigger_constant;
+};
+
/* Private, per-device-instance driver context. */
struct dev_context {
+ /** Device profile struct for this device. */
+ const struct cv_profile *prof;
+
/** FTDI device context (used by libftdi). */
struct ftdi_context *ftdic;
/**
* An 8MB buffer where we'll store the de-mangled samples.
- * Format: Each sample is 1 byte, MSB is channel 7, LSB is channel 0.
+ * LA8: Each sample is 1 byte, MSB is channel 7, LSB is channel 0.
+ * LA16: Each sample is 2 bytes, MSB is channel 15, LSB is channel 0.
*/
uint8_t *final_buf;
/**
- * Trigger pattern (MSB = channel 7, LSB = channel 0).
- * A 1 bit matches a high signal, 0 matches a low signal on a probe.
- * Only low/high triggers (but not e.g. rising/falling) are supported.
+ * Trigger pattern.
+ * A 1 bit matches a high signal, 0 matches a low signal on a channel.
+ *
+ * If the resp. 'trigger_edgemask' bit is set, 1 means "rising edge",
+ * and 0 means "falling edge".
*/
- uint8_t trigger_pattern;
+ uint16_t trigger_pattern;
/**
- * Trigger mask (MSB = channel 7, LSB = channel 0).
+ * Trigger mask.
* A 1 bit means "must match trigger_pattern", 0 means "don't care".
*/
- uint8_t trigger_mask;
+ uint16_t trigger_mask;
- /** Time (in seconds) before the trigger times out. */
- uint64_t trigger_timeout;
+ /**
+ * Trigger edge mask.
+ * A 1 bit means "edge triggered", 0 means "state triggered".
+ *
+ * Edge triggering is only supported on LA16 (but not LA8).
+ */
+ uint16_t trigger_edgemask;
/** Tells us whether an SR_DF_TRIGGER packet was already sent. */
int trigger_found;
- /** TODO */
- time_t done;
+ /** Used for keeping track how much time has passed. */
+ gint64 done;
/** Counter/index for the data block to be read. */
int block_counter;
- /** The divcount value (determines the sample period) for the LA8. */
+ /** The divcount value (determines the sample period). */
uint8_t divcount;
- /** This ChronoVu LA8's USB PID (multiple versions exist). */
+ /** This ChronoVu device's USB VID/PID. */
+ uint16_t usb_vid;
uint16_t usb_pid;
+
+ /** Samplerates supported by this device. */
+ uint64_t samplerates[255];
};
/* protocol.c */
-extern const int32_t chronovu_la8_hwcaps[];
-extern uint64_t chronovu_la8_samplerates[];
-extern SR_PRIV const char *chronovu_la8_probe_names[];
-SR_PRIV void fill_supported_samplerates_if_needed(void);
-SR_PRIV int is_valid_samplerate(uint64_t samplerate);
-SR_PRIV uint8_t samplerate_to_divcount(uint64_t samplerate);
-SR_PRIV int la8_write(struct dev_context *devc, uint8_t *buf, int size);
-SR_PRIV int la8_read(struct dev_context *devc, uint8_t *buf, int size);
-SR_PRIV int la8_close(struct dev_context *devc);
-SR_PRIV int la8_close_usb_reset_sequencer(struct dev_context *devc);
-SR_PRIV int la8_reset(struct dev_context *devc);
-SR_PRIV int configure_probes(const struct sr_dev_inst *sdi);
-SR_PRIV int set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate);
-SR_PRIV int la8_read_block(struct dev_context *devc);
-SR_PRIV void send_block_to_session_bus(struct dev_context *devc, int block);
+extern SR_PRIV const char *cv_channel_names[];
+extern const struct cv_profile cv_profiles[];
+SR_PRIV void cv_fill_samplerates_if_needed(const struct sr_dev_inst *sdi);
+SR_PRIV uint8_t cv_samplerate_to_divcount(const struct sr_dev_inst *sdi,
+ uint64_t samplerate);
+SR_PRIV int cv_write(struct dev_context *devc, uint8_t *buf, int size);
+SR_PRIV int cv_configure_channels(const struct sr_dev_inst *sdi);
+SR_PRIV int cv_set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate);
+SR_PRIV int cv_read_block(struct dev_context *devc);
+SR_PRIV void cv_send_block_to_session_bus(struct dev_context *devc, int block);
#endif